class Settings():
    def __init__(self):
        """初始化游戏的设置"""
        #屏幕设置
        self.screen_width = 800
        self.screen_height = 500
        self.bg_color = (230,230,230)
        #飞船的设置
        self.ship_speed_factor = 1.5

        """子弹的数值"""
        self.bullet_speed_factor = 1
        self.bullet_width = 650
        self.bullet_height = 650
        self.bullet_color =  60, 60, 60
        self.bullet_allowed = 3

        """外星人设置"""
        self.alien_speed_factor = 1
        self.fleet_drop_speed = 10
        #fleet_direction为1表示向右移动，为-1表示向左移动
        self.fleet_direction = 1

        """飞船设置"""
        self.ship_speed_factor = 1.5
        self.ship_limit = 3



